I thought metal roofs needed special tools? Did you buy/rent or can you get by with more common tools if you are doing it yourself?
There're some specific tools required or advisable, but not much. I bought everything, mostly in Harbor Freight Tools (pls - don't condemn me - I love this store :):
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Metal snips ($12). Bought a set, the yellow one is actually redundant.
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Hemming tool ($10). The one sold by manufacturer is outrageous $79. It does have a handle that HFT one is missing, but for $69 I would better buy a welder, and learn how to weld.
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A small seamer ($10) - just for bending small pieces. You probably can do without it.
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Metal shears ($50). This is the tool I knew about beforehand and consciously decided to go without it. After all, I needed to cut only 14 feet (you'll need to cut a panel lengthwise eventually), I though I can be patient and do it with metal snips (even if it takes an hour). I was very wrong. I can be patient, but I could only cut first couple of feet - after that whatever you do your snips jam in the panel and you can't cut anything further. After spending 1.5 hours trying I run out of ideas and patience, gave up and run for this tool. It took less then a minute to cut the full length.
There're other tools I needed to buy, but they're general purposes, like pop rivets tool. Add a drill, a screwdriver/impact driver and a hammer and you'll probably get the complete tool set.
The toolset also depends on the type of roof you install, but they're usually for specific conditions. Like if you have a very low pitch you'll need mechanically closed seams that require specific tool, but I think it's rare.